Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Edward T. Zellers"'
Autor:
Robert W. Hower, Nicolas Nuñovero, Muhammad Akbar, Joseph A. Potkay, Changhua Zhan, Edward T. Zellers
Publikováno v:
The Analyst. 145:7582-7594
We describe a microfabricated passive preconcentrator (μPP) intended for integration into gas chromatographic microsystems (μGC) for analyzing volatile/semi-volatile organic compounds (S/VOC). Devices (8 × 8 mm) were made from a silicon-on-insulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6cf77e7d60aafd8e14827c21b07f781
https://doi.org/10.1039/d0an01485k
https://doi.org/10.1039/d0an01485k
Autor:
Junqi Wang, Nicolas Nuñovero, Changhua Zhan, Robert Nidetz, William H. Steinecker, Seth J. Peterson, Bryan M. Brookover, Edward T. Zellers
Publikováno v:
Proceedings, Vol 1, Iss 4, p 633 (2017)
The capability to analyze complex mixtures of airborne volatile organic compounds (VOCs) at low concentrations; in situ; has implications for environmental monitoring; worker exposure assessment; biomedical diagnostics; and population security. Since
Externí odkaz:
https://doaj.org/article/c8209ae90b67472bb8a193de4048c98a
Autor:
Sanketh Buggaveeti, Robert Nidetz, Edward T. Zellers, Nicolas Nuñovero, Junqi Wang, Katsuo Kurabayashi, Zhijin Lin
Publikováno v:
Sensors and Actuators B: Chemical. 254:561-572
A microfabricated separation column designed for ultimate use in a wearable gas chromatographic micro-analytical system (μGC) for analyzing mixtures of airborne volatile organic compounds (VOC) is described. The monolithic μcolumn chip measures 7.1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e28d10afa498ce127e1b2f8984992bc6
https://doi.org/10.1016/j.snb.2017.07.065
https://doi.org/10.1016/j.snb.2017.07.065
Autor:
Changhua Zhan, Muhammad Akbar, Joseph A. Potkay, Nicolas Nuñovero, Robert W. Hower, Junqi Wang, Edward T. Zellers
Publikováno v:
2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII).
A microscale collector-injector (μCOIN), consisting of a passive micro preconcentrator (μPP) and a progressively heated micro injector (μPHI), is described. The μPP achieved predictable, nearly constant, zero-power (diffusional) sampling rates fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3e75b36ba0dd3844d45d71994d0dd15
https://doi.org/10.1109/transducers.2019.8808469
https://doi.org/10.1109/transducers.2019.8808469
Autor:
Robert Nidetz, Edward T. Zellers, Bryan M. Brookover, Seth J. Peterson, Junqi Wang, William H. Steinecker, Nicolas Nuñovero
Publikováno v:
Analytical chemistry. 91(7)
We describe a belt-mountable prototype instrument containing a gas chromatographic microsystem (μGC) and demonstrate its capability for near-real-time recognition and quantification of volatile organic compounds (VOCs) in moderately complex mixtures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ce0169c434f2a6c15846da0a12b3cbe
https://pubmed.ncbi.nlm.nih.gov/30836745
https://pubmed.ncbi.nlm.nih.gov/30836745
Publikováno v:
Journal of Chromatography A. 1444:114-122
Comprehensive two-dimensional gas chromatography (GC×GC) with a temperature-programmed microfabricated thermal modulator (μTM) is demonstrated. The 0.78 cm(2), 2-stage μTM chip with integrated heaters and a PDMS coated microchannel was placed in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::966680af363fffa84eb50631ca050f93
https://doi.org/10.1016/j.chroma.2016.03.072
https://doi.org/10.1016/j.chroma.2016.03.072
Publikováno v:
Journal of Chromatography A. 1609:460486
Most adsorbent materials used for preconcentrating and thermally desorbing volatile and semi-volatile organic compounds (S/VOCs) in portable or “micro” gas chromatographic (GC/µGC) instruments preferentially capture non-polar or moderately polar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0864c64d419053ed9ad5f4dc08ddfda
https://doi.org/10.1016/j.chroma.2019.460486
https://doi.org/10.1016/j.chroma.2019.460486
Autor:
Kee Scholten, Jonathan Bryant-Genevier, Robert Nidetz, Edward T. Zellers, Bruce Kraay, Chengyi Zhang, Junqi Wang, Changhua Zhan, Sanketh Buggaveeti, Nicolas Nuñovero
Publikováno v:
Microsystems & Nanoengineering. 4
This report concerns a benchtop prototype instrument containing a gas chromatographic microanalytical system (μGC) designed for the selective determination of multiple airborne volatile organic compounds (VOCs) at concentrations in the vicinity of r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b38db3c0b2886b11ce32f13292afc79
https://doi.org/10.1038/micronano.2017.101
https://doi.org/10.1038/micronano.2017.101
Autor:
Bryan M. Brookover, Edward T. Zellers, Changhua Zhan, Seth J. Peterson, Junqi Wang, Robert Nidetz, William H. Steinecker, Nicolas Nuñovero
Publikováno v:
Proceedings, Vol 1, Iss 4, p 633 (2017)
The capability to analyze complex mixtures of airborne volatile organic compounds (VOCs) at low concentrations; in situ; has implications for environmental monitoring; worker exposure assessment; biomedical diagnostics; and population security. Since
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e4a50d81847ad35202d2cf7d9c32b00
https://www.mdpi.com/2504-3900/1/4/633
https://www.mdpi.com/2504-3900/1/4/633
Publikováno v:
2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS).
A passive, membrane-mediated, microfabricated vapor extractor (μVE) chip for collecting volatile organic compounds (VOC) from water and biofluids is presented. Its performance when interfaced to a micro-scale gas chromatograph (μGC) prototype is de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2da64517347c5c4676908f980ff337ac
https://doi.org/10.1109/transducers.2017.7994137
https://doi.org/10.1109/transducers.2017.7994137